Grandstream Layer 2-Lite Managed Multi-Gig Switch, 8 x 2.5 GigE, 2 x 10G SFP+ GS-GWN7721 (NEW, 1H Aug)8x 2. 5 Gigabit Ethernet ports and 2x 10 Gigabit SFP+ ports GWN7721P ports 1 8 support PoE and provide smart power control to support dynamic PoE PoE+ power allocation per port Supports Loop Detection, Cable Test and Port Mirroring to quickly locate network faults SNMPv2 remote monitoring, fault diagnosis, and configuration management STP RSTP to guarantee fast convergence, ensure network stability and provide link load balancing Free and flexible